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/*
* SPDX-FileCopyrightText: 2019-2024 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <string.h>
#include <inttypes.h>
#include "utils/includes.h"
#include "common.h"
#include "eloop.h"
#include "rsn_supp/wpa.h"
#include "utils/common.h"
#include "common/eapol_common.h"
#include "utils/wpa_debug.h"
#include "common/ieee802_11_defs.h"
#include "crypto/dh_group5.h"
#include "wps/wps_i.h"
#include "wps/wps_dev_attr.h"
#include "eap_peer/eap_defs.h"
#include "eap_peer/eap_common.h"
#include "esp_wifi_driver.h"
#include "esp_event.h"
#include "esp_wifi.h"
#include "esp_err.h"
#include "esp_private/wifi.h"
#include "esp_wps_i.h"
#include "esp_dpp_i.h"
#include "esp_wps.h"
#include "eap_common/eap_wsc_common.h"
#include "esp_wpas_glue.h"
const char *wps_model_number = CONFIG_IDF_TARGET;
void *s_wps_api_lock = NULL; /* Used in WPS/WPS-REG public API only, never be freed */
void *s_wps_api_sem = NULL; /* Sync semaphore used between WPS/WPS-REG public API caller task and WPS task, never be freed */
bool s_wps_enabled = false;
#ifdef USE_WPS_TASK
struct wps_rx_param {
u8 sa[ETH_ALEN];
u8 *buf;
int len;
STAILQ_ENTRY(wps_rx_param) bqentry;
};
static STAILQ_HEAD(, wps_rx_param) s_wps_rxq;
static struct wps_sm_funcs *s_wps_sm_cb = NULL;
static void *s_wps_task_hdl = NULL;
static void *s_wps_queue = NULL;
static void *s_wps_data_lock = NULL;
static void *s_wps_task_create_sem = NULL;
static uint8_t s_wps_sig_cnt[SIG_WPS_NUM] = {0};
#endif
void wifi_wps_scan_done(void *arg, ETS_STATUS status);
void wifi_wps_scan(void *data, void *user_ctx);
int wifi_station_wps_start(void);
int wps_sm_rx_eapol_internal(u8 *src_addr, u8 *buf, u32 len);
void wifi_wps_start_internal(void);
int wifi_wps_enable_internal(const esp_wps_config_t *config);
int wifi_wps_disable_internal(void);
void wifi_station_wps_timeout_internal(void);
void wifi_station_wps_msg_timeout_internal(void);
void wifi_station_wps_success_internal(void);
void wifi_wps_scan_internal(void);
void wifi_station_wps_eapol_start_handle_internal(void);
void wps_add_discard_ap(u8 *bssid);
void wifi_station_wps_msg_timeout(void *data, void *user_ctx);
void wifi_station_wps_eapol_start_handle(void *data, void *user_ctx);
void wifi_station_wps_success(void *data, void *user_ctx);
void wifi_station_wps_timeout(void *data, void *user_ctx);
int wps_delete_timer(void);
struct wps_sm *gWpsSm = NULL;
static wps_factory_information_t *s_factory_info = NULL;
static void wps_rxq_init(void)
{
DATA_MUTEX_TAKE();
STAILQ_INIT(&s_wps_rxq);
DATA_MUTEX_GIVE();
}
static void wps_rxq_enqueue(struct wps_rx_param *param)
{
DATA_MUTEX_TAKE();
STAILQ_INSERT_TAIL(&s_wps_rxq, param, bqentry);
DATA_MUTEX_GIVE();
}
static struct wps_rx_param * wps_rxq_dequeue(void)
{
struct wps_rx_param *param = NULL;
DATA_MUTEX_TAKE();
if ((param = STAILQ_FIRST(&s_wps_rxq)) != NULL) {
STAILQ_REMOVE_HEAD(&s_wps_rxq, bqentry);
STAILQ_NEXT(param, bqentry) = NULL;
}
DATA_MUTEX_GIVE();
return param;
}
static void wps_rxq_deinit(void)
{
struct wps_rx_param *param = NULL;
DATA_MUTEX_TAKE();
while ((param = STAILQ_FIRST(&s_wps_rxq)) != NULL) {
STAILQ_REMOVE_HEAD(&s_wps_rxq, bqentry);
STAILQ_NEXT(param, bqentry) = NULL;
os_free(param->buf);
os_free(param);
}
DATA_MUTEX_GIVE();
}
#ifdef USE_WPS_TASK
void wps_task(void *pvParameters)
{
ETSEvent e;
wps_ioctl_param_t *param;
bool del_task = false;
os_semphr_give(s_wps_task_create_sem);
wpa_printf(MSG_DEBUG, "wps_Task enter");
for (;;) {
if (TRUE == os_queue_recv(s_wps_queue, &e, OS_BLOCK)) {
if ((e.sig >= SIG_WPS_ENABLE) && (e.sig < SIG_WPS_NUM)) {
DATA_MUTEX_TAKE();
if (s_wps_sig_cnt[e.sig]) {
s_wps_sig_cnt[e.sig]--;
} else {
wpa_printf(MSG_ERROR, "wpsT: invalid sig cnt, sig=%" PRId32 " cnt=%d", e.sig, s_wps_sig_cnt[e.sig]);
}
DATA_MUTEX_GIVE();
}
wpa_printf(MSG_DEBUG, "wpsT: rx sig=%" PRId32 "", e.sig);
switch (e.sig) {
case SIG_WPS_ENABLE:
case SIG_WPS_DISABLE:
case SIG_WPS_START:
param = (wps_ioctl_param_t *)e.par;
if (!param) {
wpa_printf(MSG_ERROR, "wpsT: invalid param sig=%" PRId32 "", e.sig);
os_semphr_give(s_wps_api_sem);
break;
}
if (e.sig == SIG_WPS_ENABLE) {
param->ret = wifi_wps_enable_internal((esp_wps_config_t *)(param->arg));
} else if (e.sig == SIG_WPS_DISABLE) {
DATA_MUTEX_TAKE();
param->ret = wifi_wps_disable_internal();
del_task = true;
s_wps_task_hdl = NULL;
DATA_MUTEX_GIVE();
} else {
param->ret = wifi_station_wps_start();
}
os_semphr_give(s_wps_api_sem);
break;
case SIG_WPS_RX: {
struct wps_rx_param *param = NULL;
while ((param = wps_rxq_dequeue()) != NULL) {
wps_sm_rx_eapol_internal(param->sa, param->buf, param->len);
os_free(param->buf);
os_free(param);
}
break;
}
case SIG_WPS_TIMER_TIMEOUT:
wifi_station_wps_timeout_internal();
break;
case SIG_WPS_TIMER_MSG_TIMEOUT:
wifi_station_wps_msg_timeout_internal();
break;
case SIG_WPS_TIMER_SUCCESS_CB:
wifi_station_wps_success_internal();
break;
case SIG_WPS_TIMER_SCAN:
wifi_wps_scan_internal();
break;
case SIG_WPS_TIMER_EAPOL_START:
wifi_station_wps_eapol_start_handle_internal();
break;
default:
wpa_printf(MSG_ERROR, "wpsT: invalid sig=%" PRId32 "", e.sig);
break;
}
if (del_task) {
wpa_printf(MSG_DEBUG, "wpsT: delete task");
break;
}
}
}
os_task_delete(NULL);
}
/* wps_post() is thread-safe
*
*/
int wps_post(uint32_t sig, uint32_t par)
{
wpa_printf(MSG_DEBUG, "wps post: sig=%" PRId32 " cnt=%d", sig, s_wps_sig_cnt[sig]);
ETSEvent evt;
if (!s_wps_task_hdl) {
wpa_printf(MSG_DEBUG, "wps post: sig=%" PRId32 " failed as wps task has been deinited", sig);
return ESP_FAIL;
}
DATA_MUTEX_TAKE();
if (s_wps_sig_cnt[sig]) {
wpa_printf(MSG_DEBUG, "wps post: sig=%" PRId32 " processing", sig);
DATA_MUTEX_GIVE();
return ESP_OK;
}
s_wps_sig_cnt[sig]++;
evt.sig = sig;
evt.par = par;
DATA_MUTEX_GIVE();
if (os_queue_send(s_wps_queue, &evt, os_task_ms_to_tick(10)) != TRUE) {
wpa_printf(MSG_ERROR, "WPS: Q S E");
DATA_MUTEX_TAKE();
s_wps_sig_cnt[sig]--;
DATA_MUTEX_GIVE();
return ESP_FAIL;
}
return ESP_OK;
}
#endif
/*
* wps_sm_ether_send - Send Ethernet frame
* @wpa_s: Pointer to wpa_supplicant data
* @proto: Ethertype in host byte order
* @buf: Frame payload starting from IEEE 802.1X header
* @len: Frame payload length
* Returns: >=0 on success, <0 on failure
*/
static inline int wps_sm_ether_send(struct wps_sm *sm, u16 proto,
const u8 *data, size_t data_len)
{
u8 bssid[ETH_ALEN];
int ret = esp_wifi_get_assoc_bssid_internal(bssid);
if (ret != 0) {
wpa_printf(MSG_ERROR, "bssid is empty!");
return -1;
}
return wpa_ether_send(sm, bssid, proto, data, data_len);
}
u8 *wps_sm_alloc_eapol(struct wps_sm *sm, u8 type,
const void *data, u16 data_len,
size_t *msg_len, void **data_pos)
{
return wpa_alloc_eapol(sm, type, data, data_len, msg_len, data_pos);
}
void wps_sm_free_eapol(u8 *buffer)
{
return wpa_free_eapol(buffer);
}
static void
wps_build_ic_appie_wps_pr(void)
{
struct wpabuf *extra_ie = NULL;
struct wpabuf *wps_ie;
struct wps_sm *sm = gWpsSm;
u16 pw_id;
wpa_printf(MSG_DEBUG, "wps build: wps pr");
if (wps_get_type() == WPS_TYPE_PBC) {
pw_id = DEV_PW_PUSHBUTTON;
} else {
pw_id = DEV_PW_DEFAULT;
}
wps_ie = wps_build_probe_req_ie(pw_id, sm->dev, sm->uuid,
WPS_REQ_ENROLLEE, 0, NULL);
if (!wps_ie) {
return;
}
if (wpabuf_resize(&extra_ie, wpabuf_len(wps_ie)) == 0) {
wpabuf_put_buf(extra_ie, wps_ie);
} else {
wpabuf_free(wps_ie);
return;
}
wpabuf_free(wps_ie);
esp_wifi_set_appie_internal(WIFI_APPIE_WPS_PR, (uint8_t *)wpabuf_head(extra_ie), extra_ie->used, 0);
wpabuf_free(extra_ie);
}
static void
wps_build_ic_appie_wps_ar(void)
{
struct wpabuf *buf = wps_build_assoc_req_ie(WPS_REQ_ENROLLEE);
wpa_printf(MSG_DEBUG, "wps build: wps ar");
if (buf) {
esp_wifi_set_appie_internal(WIFI_APPIE_WPS_AR, (uint8_t *)wpabuf_head(buf), buf->used, 0);
wpabuf_free(buf);
}
}
static bool ap_supports_sae(struct wps_scan_ie *scan)
{
struct wpa_ie_data rsn_info;
if (!scan->rsn) {
return false;
}
wpa_parse_wpa_ie_rsn(scan->rsn, scan->rsn[1] + 2, &rsn_info);
if (rsn_info.key_mgmt & WPA_KEY_MGMT_SAE) {
return true;
}
return false;
}
static bool
is_wps_pbc_overlap(struct wps_sm *sm, const u8 *sel_uuid)
{
if (!sel_uuid) {
wpa_printf(MSG_DEBUG, "WPS: null uuid field");
return false;
}
if (os_memcmp(sel_uuid, sm->uuid, WPS_UUID_LEN) != 0) {
wpa_printf(MSG_DEBUG, "uuid is not same");
wpa_hexdump(MSG_DEBUG, "WPS: UUID of scanned BSS is",
sel_uuid, WPS_UUID_LEN);
wpa_hexdump(MSG_DEBUG, "WPS: UUID of sm BSS is",
sm->uuid, WPS_UUID_LEN);
return true;
}
return false;
}
static bool
wps_parse_scan_result(struct wps_scan_ie *scan)
{
struct wps_sm *sm = gWpsSm;
wifi_mode_t op_mode = 0;
sm->wps_pbc_overlap = false;
if (!sm->is_wps_scan || !scan->bssid) {
return false;
}
if (wps_get_type() == WPS_TYPE_DISABLE
|| (wps_get_status() != WPS_STATUS_DISABLE
&& wps_get_status() != WPS_STATUS_SCANNING)
) {
return false;
}
esp_wifi_get_mode(&op_mode);
if ((op_mode != WIFI_MODE_STA)
#ifdef CONFIG_ESP_WIFI_SOFTAP_SUPPORT
&& (op_mode != WIFI_MODE_APSTA)
#endif
) {
return false;
}
if (!scan->rsn && !scan->wpa && (scan->capinfo & WLAN_CAPABILITY_PRIVACY)) {
wpa_printf(MSG_DEBUG, "WEP not suppported in WPS");
return false;
}
if (sm->ignore_sel_reg && !is_zero_ether_addr(sm->bssid)) {
/* We have selected candidate for this scan */
return false;
}
if (scan->wps) {
bool ap_found = false;
struct wpabuf *buf = wpabuf_alloc_copy(scan->wps + 6, scan->wps[1] - 4);
int count;
const u8 *scan_uuid;
if ((wps_get_type() == WPS_TYPE_PBC && wps_is_selected_pbc_registrar(buf)) ||
(wps_get_type() == WPS_TYPE_PIN && wps_is_addr_authorized(buf, sm->ownaddr, 1))) {
/* Found one AP with selected registrar true */
sm->ignore_sel_reg = false;
sm->discard_ap_cnt = 0;
ap_found = true;
}
if (wps_get_type() == WPS_TYPE_PIN && sm->ignore_sel_reg) {
/* AP is in discard list? */
for (count = 0; count < WPS_MAX_DIS_AP_NUM; count++) {
if (os_memcmp(sm->dis_ap_list[count].bssid, scan->bssid, ETH_ALEN) == 0) {
wpa_printf(MSG_INFO, "discard ap bssid "MACSTR, MAC2STR(scan->bssid));
wpabuf_free(buf);
return false;
}
}
}
if (ap_found || sm->ignore_sel_reg) {
if (scan->ssid[1] > SSID_MAX_LEN) {
wpabuf_free(buf);
return false;
}
esp_wifi_enable_sta_privacy_internal();
os_memset(sm->creds[0].ssid, 0, SSID_MAX_LEN);
os_memcpy(sm->creds[0].ssid, (char *)&scan->ssid[2], (int)scan->ssid[1]);
sm->creds[0].ssid_len = scan->ssid[1];
if (scan->bssid && memcmp(sm->bssid, scan->bssid, ETH_ALEN) != 0) {
wpa_printf(MSG_INFO, "sm BSSid: "MACSTR " scan BSSID " MACSTR,
MAC2STR(sm->bssid), MAC2STR(scan->bssid));
sm->discover_ssid_cnt++;
wpa_printf(MSG_INFO, "discoverd cnt is %d and chan is %d ", sm->discover_ssid_cnt, scan->chan);
os_memcpy(sm->bssid, scan->bssid, ETH_ALEN);
scan_uuid = wps_get_uuid_e(buf);
if (scan_uuid) {
if (wps_get_type() == WPS_TYPE_PBC && is_wps_pbc_overlap(sm, scan_uuid) == true) {
wpa_printf(MSG_INFO, "pbc_overlap flag is true");
sm->wps_pbc_overlap = true;
}
os_memcpy(sm->uuid, scan_uuid, WPS_UUID_LEN);
}
if (ap_supports_sae(scan)) {
wpa_printf(MSG_INFO, "AP supports SAE, get password in passphrase");
sm->dev->config_methods |= WPS_CONFIG_DISPLAY | WPS_CONFIG_VIRT_DISPLAY;
sm->wps->wps->config_methods |= WPS_CONFIG_DISPLAY | WPS_CONFIG_VIRT_DISPLAY;
/* Reset assoc req, probe reset not needed */
wps_build_ic_appie_wps_ar();
}
}
wpabuf_free(buf);
wpa_printf(MSG_DEBUG, "wps discover [%s] ", (char *)sm->creds[0].ssid);
sm->channel = scan->chan;
return true;
}
wpabuf_free(buf);
}
return false;
}
int wps_send_eap_identity_rsp(u8 id)
{
struct wps_sm *sm = gWpsSm;
struct wpabuf *eap_buf = NULL;
u8 *buf = NULL;
int len;
int ret = ESP_OK;
wpa_printf(MSG_DEBUG, "wps send eapol id rsp");
eap_buf = eap_msg_alloc(EAP_VENDOR_IETF, EAP_TYPE_IDENTITY, sm->identity_len,
EAP_CODE_RESPONSE, id);
if (!eap_buf) {
wpa_printf(MSG_ERROR, "eap buf allocation failed");
ret = ESP_FAIL;
goto _err;
}
wpabuf_put_data(eap_buf, sm->identity, sm->identity_len);
buf = wps_sm_alloc_eapol(sm, IEEE802_1X_TYPE_EAP_PACKET, wpabuf_head_u8(eap_buf), wpabuf_len(eap_buf), (size_t *)&len, NULL);
if (!buf) {
wpa_printf(MSG_ERROR, "buf allocation failed");
ret = ESP_ERR_NO_MEM;
goto _err;
}
ret = wps_sm_ether_send(sm, ETH_P_EAPOL, buf, len);
if (ret) {
wpa_printf(MSG_ERROR, "wps sm ether send failed ret=%d", ret);
ret = ESP_FAIL;
goto _err;
}
_err:
wps_sm_free_eapol(buf);
wpabuf_free(eap_buf);
return ret;
}
int wps_send_frag_ack(u8 id)
{
struct wps_sm *sm = gWpsSm;
struct wpabuf *eap_buf = NULL;
u8 *buf;
int len;
int ret = 0;
wpa_printf(MSG_DEBUG, "send frag ack id:%d", id);
if (!sm) {
return ESP_FAIL;
}
eap_buf = eap_wsc_build_frag_ack(id, EAP_CODE_RESPONSE);
if (!eap_buf) {
ret = ESP_ERR_NO_MEM;
goto _err;
}
buf = wps_sm_alloc_eapol(sm, IEEE802_1X_TYPE_EAP_PACKET, wpabuf_head_u8(eap_buf), wpabuf_len(eap_buf), (size_t *)&len, NULL);
if (!buf) {
ret = ESP_ERR_NO_MEM;
goto _err;
}
ret = wps_sm_ether_send(sm, ETH_P_EAPOL, buf, len);
wps_sm_free_eapol(buf);
if (ret) {
ret = ESP_ERR_NO_MEM;
goto _err;
}
_err:
wpabuf_free(eap_buf);
return ret;
}
int wps_enrollee_process_msg_frag(struct wpabuf **buf, int tot_len, u8 *frag_data, int frag_len, u8 flag)
{
struct wps_sm *sm = gWpsSm;
u8 identifier;
if (!sm) {
return ESP_FAIL;
}
identifier = sm->current_identifier;
if (buf == NULL || frag_data == NULL) {
wpa_printf(MSG_ERROR, "fun:%s. line:%d, frag buf or frag data is null", __FUNCTION__, __LINE__);
return ESP_FAIL;
}
if (*buf == NULL) {
if (0 == (flag & WPS_MSG_FLAG_LEN) || tot_len < frag_len) {
wpa_printf(MSG_ERROR, "fun:%s. line:%d, flag error:%02x", __FUNCTION__, __LINE__, flag);
return ESP_FAIL;
}
*buf = wpabuf_alloc(tot_len);
if (*buf == NULL) {
return ESP_ERR_NO_MEM;
}
wpabuf_put_data(*buf, frag_data, frag_len);
return wps_send_frag_ack(identifier);
}
if (flag & WPS_MSG_FLAG_LEN) {
wpa_printf(MSG_ERROR, "fun:%s. line:%d, flag error:%02x", __FUNCTION__, __LINE__, flag);
return ESP_FAIL;
}
wpabuf_put_data(*buf, frag_data, frag_len);
if (flag & WPS_MSG_FLAG_MORE) {
return wps_send_frag_ack(identifier);
}
return ESP_OK;
}
int wps_process_wps_mX_req(u8 *ubuf, int len, enum wps_process_res *res)
{
struct wps_sm *sm = gWpsSm;
static struct wpabuf *wps_buf = NULL;
struct eap_expand *expd;
int tlen = 0;
u8 *tbuf;
u8 flag;
int frag_len;
u16 be_tot_len = 0;
if (!sm || !res) {
return ESP_FAIL;
}
expd = (struct eap_expand *) ubuf;
wpa_printf(MSG_DEBUG, "wps process mX req: len %d, tlen %d", len, tlen);
if (sm->state == WAIT_START) {
if (expd->opcode != WSC_Start) {
wpa_printf(MSG_DEBUG, "EAP-WSC: Unexpected Op-Code %d "
"in WAIT_START state", expd->opcode);
return ESP_ERR_INVALID_STATE;
}
wpa_printf(MSG_DEBUG, "EAP-WSC: Received start");
sm->state = WPA_MESG;
} else if (expd->opcode == WSC_Start) {
wpa_printf(MSG_DEBUG, "EAP-WSC: Unexpected Op-Code %d",
expd->opcode);
return ESP_ERR_INVALID_STATE;
}
flag = *(u8 *)(ubuf + sizeof(struct eap_expand));
if (flag & WPS_MSG_FLAG_LEN) {
tbuf = ubuf + sizeof(struct eap_expand) + 1 + 2;//two bytes total length
frag_len = len - (sizeof(struct eap_expand) + 1 + 2);
be_tot_len = *(u16 *)(ubuf + sizeof(struct eap_expand) + 1);
tlen = ((be_tot_len & 0xff) << 8) | ((be_tot_len >> 8) & 0xff);
} else {
tbuf = ubuf + sizeof(struct eap_expand) + 1;
frag_len = len - (sizeof(struct eap_expand) + 1);
tlen = frag_len;
}
if ((flag & WPS_MSG_FLAG_MORE) || wps_buf != NULL) {//frag msg
if (tlen > 50000) {
wpa_printf(MSG_ERROR, "EAP-WSC: Invalid Message Length");
return ESP_FAIL;
}
wpa_printf(MSG_DEBUG, "rx frag msg id:%d, flag:%d, frag_len: %d, tot_len: %d, be_tot_len:%d", sm->current_identifier, flag, frag_len, tlen, be_tot_len);
if (ESP_OK != wps_enrollee_process_msg_frag(&wps_buf, tlen, tbuf, frag_len, flag)) {
if (wps_buf) {
wpabuf_free(wps_buf);
wps_buf = NULL;
}
return ESP_FAIL;
}
if (flag & WPS_MSG_FLAG_MORE) {
*res = WPS_FRAGMENT;
return ESP_OK;
}
} else { //not frag msg
if (wps_buf) {//if something wrong, frag msg buf is not freed, free first
wpa_printf(MSG_ERROR, "something is wrong, frag buf is not freed");
wpabuf_free(wps_buf);
wps_buf = NULL;
}
wps_buf = wpabuf_alloc_copy(tbuf, tlen);
}
if (!wps_buf) {
return ESP_FAIL;
}
eloop_cancel_timeout(wifi_station_wps_msg_timeout, NULL, NULL);
*res = wps_enrollee_process_msg(sm->wps, expd->opcode, wps_buf);
if (*res == WPS_FAILURE) {
sm->state = WPA_FAIL;
}
if (wps_buf) {
wpabuf_free(wps_buf);
wps_buf = NULL;
}
return ESP_OK;
}
int wps_send_wps_mX_rsp(u8 id)
{
struct wps_sm *sm = gWpsSm;
struct wpabuf *eap_buf = NULL;
struct wpabuf *wps_buf = NULL;
u8 *buf;
int len;
int ret = 0;
enum wsc_op_code opcode;
wpa_printf(MSG_DEBUG, "wps send wps mX rsp");
if (!sm) {
return ESP_FAIL;
}
wps_buf = wps_enrollee_get_msg(sm->wps, &opcode);
if (!wps_buf) {
ret = ESP_FAIL;
goto _err;
}
eap_buf = eap_msg_alloc(EAP_VENDOR_WFA, 0x00000001, wpabuf_len(wps_buf) + 2, EAP_CODE_RESPONSE, id);
if (!eap_buf) {
ret = ESP_FAIL;
goto _err;
}
wpabuf_put_u8(eap_buf, opcode);
wpabuf_put_u8(eap_buf, 0x00); /* flags */
wpabuf_put_data(eap_buf, wpabuf_head_u8(wps_buf), wpabuf_len(wps_buf));
wpabuf_free(wps_buf);
buf = wps_sm_alloc_eapol(sm, IEEE802_1X_TYPE_EAP_PACKET, wpabuf_head_u8(eap_buf), wpabuf_len(eap_buf), (size_t *)&len, NULL);
if (!buf) {
ret = ESP_FAIL;
goto _err;
}
ret = wps_sm_ether_send(sm, ETH_P_EAPOL, buf, len);
wps_sm_free_eapol(buf);
if (ret) {
ret = ESP_FAIL;
goto _err;
}
_err:
wpabuf_free(eap_buf);
return ret;
}
int wps_tx_start(void)
{
struct wps_sm *sm = gWpsSm;
u8 *buf;
int len;
if (!sm) {
return ESP_FAIL;
}
wpa_printf(MSG_DEBUG, "WPS: Send EAPOL START.");
buf = wps_sm_alloc_eapol(sm, IEEE802_1X_TYPE_EAPOL_START, (u8 *)"", 0, (size_t *)&len, NULL);
if (!buf) {
return ESP_ERR_NO_MEM;
}
wps_sm_ether_send(sm, ETH_P_EAPOL, buf, len);
wps_sm_free_eapol(buf);
eloop_register_timeout(3, 0, wifi_station_wps_eapol_start_handle, NULL, NULL);
return ESP_OK;
}
int wps_start_pending(void)
{
if (!gWpsSm) {
return ESP_FAIL;
}
wpa_printf(MSG_DEBUG, "wps start pending");
return wps_tx_start();
}
static void wps_stop_connection_timers(struct wps_sm *sm)
{
esp_wifi_disarm_sta_connection_timer_internal();
eloop_cancel_timeout(wifi_station_wps_msg_timeout, NULL, NULL);
eloop_cancel_timeout(wifi_station_wps_success, NULL, NULL);
}
static int wps_sm_init(struct wps_sm *sm)
{
if (!sm) {
return -1;
}
sm->ignore_sel_reg = false;
sm->discard_ap_cnt = 0;
sm->scan_cnt = 0;
sm->discover_ssid_cnt = 0;
os_bzero(sm->bssid, ETH_ALEN);
os_bzero(sm->creds, sizeof(sm->creds));
sm->ap_cred_cnt = 0;
return 0;
}
int wps_stop_process(wifi_event_sta_wps_fail_reason_t reason_code)
{
struct wps_sm *sm = gWpsSm;
if (!gWpsSm) {
return ESP_FAIL;
}
wps_set_status(WPS_STATUS_DISABLE);
wps_sm_init(sm);
sm->wps->state = SEND_M1;
wps_stop_connection_timers(sm);
esp_wifi_disconnect();
sm->state = WPA_FAIL;
wpa_printf(MSG_DEBUG, "Write wps_fail_information");
esp_event_post(WIFI_EVENT, WIFI_EVENT_STA_WPS_ER_FAILED, &reason_code, sizeof(reason_code), OS_BLOCK);
return ESP_OK;
}
int wps_finish(void)
{
struct wps_sm *sm = gWpsSm;
int ret = ESP_FAIL;
if (!gWpsSm) {
return ESP_FAIL;
}
if (sm->wps->state == WPS_FINISHED) {
wpa_printf(MSG_DEBUG, "wps finished------>");
wps_set_status(WPS_STATUS_SUCCESS);
/* WPS finished, dequeue all timers */
wps_delete_timer();
esp_wifi_unset_appie_internal(WIFI_APPIE_WPS_PR);
esp_wifi_unset_appie_internal(WIFI_APPIE_WPS_AR);
esp_wifi_set_wps_cb_internal(NULL);
if (sm->ap_cred_cnt == 1) {
wifi_config_t *config = os_zalloc(sizeof(wifi_config_t));
if (config == NULL) {
return ESP_FAIL;
}
esp_wifi_get_config(WIFI_IF_STA, config);
esp_wifi_disconnect();
os_memcpy(config->sta.ssid, sm->creds[0].ssid, sm->creds[0].ssid_len);
os_memcpy(config->sta.password, sm->creds[0].key, sm->creds[0].key_len);
os_memcpy(config->sta.bssid, sm->bssid, ETH_ALEN);
#ifndef CONFIG_WPS_STRICT
/* Some APs support AES in WPA IE, enable connection with them */
if (sm->creds[0].auth_type == WPS_AUTH_WPAPSK &&
(sm->creds[0].encr_type & WPS_ENCR_AES)) {
config->sta.threshold.authmode = WIFI_AUTH_WPA_PSK;
}
#endif
config->sta.bssid_set = 0;
config->sta.sae_pwe_h2e = 0;
esp_wifi_set_config(WIFI_IF_STA, config);
esp_wifi_connect();
os_free(config);
}
eloop_cancel_timeout(wifi_station_wps_success, NULL, NULL);
eloop_register_timeout(1, 0, wifi_station_wps_success, NULL, NULL);
ret = 0;
} else {
wpa_printf(MSG_ERROR, "wps failed-----> ignore_sel_reg=%d", sm->ignore_sel_reg);
if (sm->ignore_sel_reg) {
sm->discover_ssid_cnt = 0;
esp_wifi_disconnect();
os_bzero(sm->creds, sizeof(sm->creds));
wps_add_discard_ap(sm->bssid);
} else {
ret = wps_stop_process(WPS_FAIL_REASON_NORMAL);
}
}
return ret;
}
static void wps_sm_notify_deauth(void)
{
if (gWpsSm && gWpsSm->wps->state != WPS_FINISHED) {
wps_stop_process(WPS_FAIL_REASON_RECV_DEAUTH);
}
}
/* Add current ap to discard ap list */
void wps_add_discard_ap(u8 *bssid)
{
struct wps_sm *sm = gWpsSm;
u8 cnt = sm->discard_ap_cnt;
if (!gWpsSm || !bssid) {
return;
}
if (sm->discard_ap_cnt < WPS_MAX_DIS_AP_NUM) {
sm->discard_ap_cnt++;
} else {
for (cnt = 0; cnt < WPS_MAX_DIS_AP_NUM - 2; cnt++) {
os_memcpy(sm->dis_ap_list[cnt].bssid, sm->dis_ap_list[cnt + 1].bssid, 6);
}
sm->discard_ap_cnt = WPS_MAX_DIS_AP_NUM;
}
os_memcpy(sm->dis_ap_list[cnt].bssid, bssid, ETH_ALEN);
wpa_printf(MSG_INFO, "Added BSSID:"MACSTR" to discard list cnt=%d" , MAC2STR(bssid), sm->discard_ap_cnt);
}
int wps_start_msg_timer(void)
{
struct wps_sm *sm = gWpsSm;
uint32_t msg_timeout;
int ret = ESP_FAIL;
if (!gWpsSm) {
return ESP_FAIL;
}
if (sm->wps->state == WPS_FINISHED) {
msg_timeout = 100;
wpa_printf(MSG_DEBUG, "start msg timer WPS_FINISHED %" PRId32 " ms", msg_timeout);
eloop_cancel_timeout(wifi_station_wps_msg_timeout, NULL, NULL);
eloop_register_timeout(0, msg_timeout*1000, wifi_station_wps_msg_timeout, NULL, NULL);
ret = 0;
} else if (sm->wps->state == RECV_M2) {
msg_timeout = 5;
wpa_printf(MSG_DEBUG, "start msg timer RECV_M2 %" PRId32 " s", msg_timeout);
eloop_cancel_timeout(wifi_station_wps_msg_timeout, NULL, NULL);
eloop_register_timeout(msg_timeout, 0, wifi_station_wps_msg_timeout, NULL, NULL);
ret = 0;
}
return ret;
}
/**
* wps_sm_rx_eapol - Process received WPA EAPOL frames
* @sm: Pointer to WPA state machine data from wpa_sm_init()
* @src_addr: Source MAC address of the EAPOL packet
* @buf: Pointer to the beginning of the EAPOL data (EAPOL header)
* @len: Length of the EAPOL frame
* Returns: 1 = WPA EAPOL-Key processed, ESP_OK = not a WPA EAPOL-Key, ESP_FAIL failure
*
* This function is called for each received EAPOL frame. Other than EAPOL-Key
* frames can be skipped if filtering is done elsewhere. wpa_sm_rx_eapol() is
* only processing WPA and WPA2 EAPOL-Key frames.
*
* The received EAPOL-Key packets are validated and valid packets are replied
* to. In addition, key material (PTK, GTK) is configured at the end of a
* successful key handshake.
* buf begin from version, so remove mac header ,snap header and ether_type
*/
int wps_sm_rx_eapol(u8 *src_addr, u8 *buf, u32 len)
{
if (!gWpsSm) {
return ESP_FAIL;
}
#ifdef USE_WPS_TASK
{
struct wps_rx_param *param = os_zalloc(sizeof(struct wps_rx_param)); /* free in task */
if (!param) {
return ESP_ERR_NO_MEM;
}
param->buf = os_zalloc(len); /* free in task */
if (!param->buf) {
os_free(param);
return ESP_ERR_NO_MEM;
}
os_memcpy(param->buf, buf, len);
param->len = len;
os_memcpy(param->sa, src_addr, ETH_ALEN);
wps_rxq_enqueue(param);
return wps_post(SIG_WPS_RX, 0);
}
#else
return wps_sm_rx_eapol_internal(src_addr, buf, len);
#endif
}
int wps_sm_rx_eapol_internal(u8 *src_addr, u8 *buf, u32 len)
{
struct wps_sm *sm = gWpsSm;
u32 plen, data_len, eap_len;
struct ieee802_1x_hdr *hdr;
struct eap_hdr *ehdr;
u8 *tmp;
u8 eap_code;
u8 eap_type;
int ret = ESP_FAIL;
enum wps_process_res res = WPS_DONE;
if (!gWpsSm) {
return ESP_FAIL;
}
if (len < sizeof(*hdr) + sizeof(*ehdr)) {
wpa_printf(MSG_DEBUG, "WPA: EAPOL frame too short to be a WPA "
"EAPOL-Key (len %lu, expecting at least %lu)",
(unsigned long) len,
(unsigned long) sizeof(*hdr) + sizeof(*ehdr));
return ESP_OK;
}
tmp = buf;
hdr = (struct ieee802_1x_hdr *) tmp;
ehdr = (struct eap_hdr *) (hdr + 1);
plen = be_to_host16(hdr->length);
data_len = plen + sizeof(*hdr);
eap_len = be_to_host16(ehdr->length);
wpa_printf(MSG_DEBUG, "IEEE 802.1X RX: version=%d type=%d length=%" PRId32 "",
hdr->version, hdr->type, plen);
if (hdr->version < EAPOL_VERSION) {
/* TODO: backwards compatibility */
}
if (hdr->type != IEEE802_1X_TYPE_EAP_PACKET) {
wpa_printf(MSG_DEBUG, "WPS: EAP frame (type %u) discarded, "
"not a EAP PACKET frame", hdr->type);
ret = 0;
goto out;
}
if (plen > len - sizeof(*hdr) || plen < sizeof(*ehdr)) {
wpa_printf(MSG_DEBUG, "WPA: EAPOL frame payload size %lu "
"invalid (frame size %lu)",
(unsigned long) plen, (unsigned long) len);
ret = 0;
goto out;
}
wpa_hexdump(MSG_MSGDUMP, "WPA: RX EAPOL-EAP PACKET", tmp, len);
if (data_len < len) {
wpa_printf(MSG_DEBUG, "WPA: ignoring %lu bytes after the IEEE "
"802.1X data", (unsigned long) len - data_len);
}
if (eap_len != plen) {
wpa_printf(MSG_DEBUG, "WPA: EAPOL length %lu "
"invalid (eapol length %lu)",
(unsigned long) eap_len, (unsigned long) plen);
ret = 0;
goto out;
}
eap_code = ehdr->code;
switch (eap_code) {
case EAP_CODE_SUCCESS:
wpa_printf(MSG_DEBUG, "error: receive eapol success frame!");
ret = 0;
break;
case EAP_CODE_FAILURE:
wpa_printf(MSG_DEBUG, "receive eap code failure!");
ret = wps_finish();
break;
case EAP_CODE_RESPONSE:
wpa_printf(MSG_DEBUG, "error: receive eapol response frame!");
ret = 0;
break;
case EAP_CODE_REQUEST:
eap_type = ((u8 *)ehdr)[sizeof(*ehdr)];
switch (eap_type) {
case EAP_TYPE_IDENTITY:
wpa_printf(MSG_DEBUG, "=========identity===========");
sm->current_identifier = ehdr->identifier;
eloop_cancel_timeout(wifi_station_wps_eapol_start_handle, NULL, NULL);
wpa_printf(MSG_DEBUG, "WPS: Build EAP Identity.");
ret = wps_send_eap_identity_rsp(ehdr->identifier);
eloop_register_timeout(3, 0, wifi_station_wps_eapol_start_handle, NULL, NULL);
break;
case EAP_TYPE_EXPANDED:
wpa_printf(MSG_DEBUG, "=========expanded plen[%" PRId32 "], %d===========", plen, sizeof(*ehdr));
sm->current_identifier = ehdr->identifier;
tmp = (u8 *)(ehdr + 1) + 1;
ret = wps_process_wps_mX_req(tmp, plen - sizeof(*ehdr) - 1, &res);
if (res == WPS_FRAGMENT) {
wpa_printf(MSG_DEBUG, "wps frag, silently exit", res);
ret = ESP_OK;
break;
}
if (ret == ESP_OK && res != WPS_FAILURE) {
ret = wps_send_wps_mX_rsp(ehdr->identifier);
if (ret == ESP_OK) {
wpa_printf(MSG_DEBUG, "sm->wps->state = %d", sm->wps->state);
wps_start_msg_timer();
}
} else if (ret == ESP_ERR_INVALID_STATE) {
ret = ESP_OK;
} else {
ret = ESP_FAIL;
}
break;
default:
break;
}
break;
default:
break;
}
out:
if (ret != 0 && sm->ignore_sel_reg) {
wifi_wps_scan(NULL, NULL);
} else if ((ret != 0 || res == WPS_FAILURE)) {
wifi_event_sta_wps_fail_reason_t reason_code = WPS_FAIL_REASON_NORMAL;
wpa_printf(MSG_DEBUG, "wpa rx eapol internal: fail ret=%d", ret);
wps_set_status(WPS_STATUS_DISABLE);
esp_wifi_disarm_sta_connection_timer_internal();
eloop_cancel_timeout(wifi_station_wps_timeout, NULL, NULL);
esp_event_post(WIFI_EVENT, WIFI_EVENT_STA_WPS_ER_FAILED, &reason_code, sizeof(reason_code), OS_BLOCK);
return ret;
}
return ret;
}
int wps_set_default_factory(void)
{
if (!s_factory_info) {
s_factory_info = os_zalloc(sizeof(wps_factory_information_t));
if (!s_factory_info) {
wpa_printf(MSG_ERROR, "wps factory info malloc failed");
return ESP_ERR_NO_MEM;
}
}
os_snprintf(s_factory_info->manufacturer, WPS_MAX_MANUFACTURER_LEN, "ESPRESSIF");
os_snprintf(s_factory_info->model_name, WPS_MAX_MODEL_NUMBER_LEN, "ESPRESSIF IOT");
os_snprintf(s_factory_info->model_number, WPS_MAX_MODEL_NAME_LEN, wps_model_number);
os_snprintf(s_factory_info->device_name, WPS_MAX_DEVICE_NAME_LEN, "%s STATION", wps_model_number);
return ESP_OK;
}
int wps_set_factory_info(const esp_wps_config_t *config)
{
int ret;
ret = wps_set_default_factory();
if (ret != 0) {
return ret;
}
if (config->factory_info.manufacturer[0] != 0) {
os_memcpy(s_factory_info->manufacturer, config->factory_info.manufacturer, WPS_MAX_MANUFACTURER_LEN - 1);
}
if (config->factory_info.model_number[0] != 0) {
os_memcpy(s_factory_info->model_number, config->factory_info.model_number, WPS_MAX_MODEL_NUMBER_LEN - 1);
}
if (config->factory_info.model_name[0] != 0) {
os_memcpy(s_factory_info->model_name, config->factory_info.model_name, WPS_MAX_MODEL_NAME_LEN - 1);
}
if (config->factory_info.device_name[0] != 0) {
os_memcpy(s_factory_info->device_name, config->factory_info.device_name, WPS_MAX_DEVICE_NAME_LEN - 1);
}
wpa_printf(MSG_INFO, "manufacturer: %s, model number: %s, model name: %s, device name: %s", s_factory_info->manufacturer,
s_factory_info->model_number, s_factory_info->model_name, s_factory_info->device_name);
return ESP_OK;
}
int wps_dev_init(void)
{
int ret = 0;
struct wps_sm *sm = gWpsSm;
struct wps_device_data *dev = NULL;
if (!sm) {
ret = ESP_FAIL;
goto _out;
}
dev = &sm->wps_ctx->dev;
sm->dev = dev;
if (!dev) {
ret = ESP_FAIL;
goto _out;
}
dev->config_methods = WPS_CONFIG_VIRT_PUSHBUTTON;
#ifdef CONFIG_ESP_WIFI_WPS_PASSPHRASE
dev->config_methods |= WPS_CONFIG_DISPLAY | WPS_CONFIG_VIRT_DISPLAY;
#endif
dev->rf_bands = WPS_RF_24GHZ;
WPA_PUT_BE16(dev->pri_dev_type, WPS_DEV_PHONE);
WPA_PUT_BE32(dev->pri_dev_type + 2, WPS_DEV_OUI_WFA);
WPA_PUT_BE16(dev->pri_dev_type + 6, WPS_DEV_PHONE_SINGLE_MODE);
if (!s_factory_info) {
ret = wps_set_default_factory();
if (ret != 0) {
goto _out;
}
}
dev->manufacturer = os_zalloc(WPS_MAX_MANUFACTURER_LEN);
if (!dev->manufacturer) {
ret = ESP_FAIL;
goto _out;
}
os_snprintf(dev->manufacturer, WPS_MAX_MANUFACTURER_LEN, s_factory_info->manufacturer);
dev->model_name = os_zalloc(WPS_MAX_MODEL_NAME_LEN);
if (!dev->model_name) {
ret = ESP_FAIL;
goto _out;
}
os_snprintf(dev->model_name, WPS_MAX_MODEL_NAME_LEN, s_factory_info->model_name);
dev->model_number = os_zalloc(WPS_MAX_MODEL_NAME_LEN);
if (!dev->model_number) {
ret = ESP_FAIL;
goto _out;
}
os_snprintf(dev->model_number, WPS_MAX_MODEL_NAME_LEN, s_factory_info->model_number);
dev->device_name = os_zalloc(WPS_MAX_DEVICE_NAME_LEN);
if (!dev->device_name) {
ret = ESP_FAIL;
goto _out;
}
os_snprintf(dev->device_name, WPS_MAX_DEVICE_NAME_LEN, s_factory_info->device_name);
dev->serial_number = os_zalloc(16);
if (!dev->serial_number) {
ret = ESP_FAIL;
goto _out;
}
os_snprintf(dev->serial_number, 16, "%02x%02x%02x%02x%02x%02x",
sm->ownaddr[0], sm->ownaddr[1], sm->ownaddr[2],
sm->ownaddr[3], sm->ownaddr[4], sm->ownaddr[5]);
uuid_gen_mac_addr(sm->ownaddr, sm->uuid);
os_memcpy(dev->mac_addr, sm->ownaddr, ETH_ALEN);
return ESP_OK;
_out:
wps_dev_deinit(dev);
return ret;
}
int wps_dev_deinit(struct wps_device_data *dev)
{
int ret = 0;
if (!dev) {
return ESP_FAIL;
}
wps_device_data_free(dev);
if (s_factory_info) {
os_free(s_factory_info);
s_factory_info = NULL;
}
return ret;
}
void
wifi_station_wps_timeout_internal(void)
{
struct wps_sm *sm = gWpsSm;
if (!sm) {
return;
}
esp_wifi_disarm_sta_connection_timer_internal();
wps_set_status(WPS_STATUS_DISABLE);
esp_event_post(WIFI_EVENT, WIFI_EVENT_STA_WPS_ER_TIMEOUT, 0, 0, OS_BLOCK);
}
void wifi_station_wps_timeout(void *data, void *user_ctx)
{
#ifdef USE_WPS_TASK
wps_post(SIG_WPS_TIMER_TIMEOUT, 0);
return;
#else
wifi_station_wps_timeout_internal();
#endif
}
void
wifi_station_wps_msg_timeout_internal(void)
{
struct wps_sm *sm = gWpsSm;
if (!sm) {
return;
}
if (sm->wps->state == WPS_FINISHED) {
wpa_printf(MSG_DEBUG, "wps msg timeout WPS_FINISHED");
wps_finish();
return;
} else if (sm->wps->state == RECV_M2) {
wpa_printf(MSG_DEBUG, "wps msg timeout RECV_M2");
if (!sm->ignore_sel_reg) {
wps_stop_process(WPS_FAIL_REASON_RECV_M2D);
}
}
if (sm->ignore_sel_reg) {
esp_wifi_disconnect();
wps_add_discard_ap(sm->bssid);
os_bzero(sm->creds, sizeof(sm->creds));
os_bzero(sm->bssid, ETH_ALEN);
sm->discover_ssid_cnt = 0;
wifi_wps_scan(NULL, NULL);
}
}
void wifi_station_wps_msg_timeout(void *data, void *user_ctx)
{
#ifdef USE_WPS_TASK
wps_post(SIG_WPS_TIMER_MSG_TIMEOUT, 0);
return;
#else
wifi_station_wps_msg_timeout_internal();
#endif
}
void wifi_station_wps_success_internal(void)
{
wifi_event_sta_wps_er_success_t evt = {0};
struct wps_sm *sm = gWpsSm;
int i;
/*
* For only one AP credential don't send event data, wps_finish() has already set
* the config. This is for backward compatibility.
*/
if (sm->ap_cred_cnt > 1) {
evt.ap_cred_cnt = sm->ap_cred_cnt;
for (i = 0; i < MAX_WPS_AP_CRED; i++) {
os_memcpy(evt.ap_cred[i].ssid, sm->creds[i].ssid, sm->creds[i].ssid_len);
os_memcpy(evt.ap_cred[i].passphrase, sm->creds[i].key, sm->creds[i].key_len);
}
esp_event_post(WIFI_EVENT, WIFI_EVENT_STA_WPS_ER_SUCCESS, &evt,
sizeof(evt), OS_BLOCK);
} else {
esp_event_post(WIFI_EVENT, WIFI_EVENT_STA_WPS_ER_SUCCESS,
0, 0, OS_BLOCK);
}
}
void wifi_station_wps_success(void *data, void *user_ctx)
{
#ifdef USE_WPS_TASK
wps_post(SIG_WPS_TIMER_SUCCESS_CB, 0);
return;
#else
wifi_station_wps_success_internal();
#endif
}
void wifi_station_wps_eapol_start_handle_internal(void)
{
wpa_printf(MSG_DEBUG, "Resend EAPOL-Start.");
wps_tx_start();
}
void wifi_station_wps_eapol_start_handle(void *data, void *user_ctx)
{
#ifdef USE_WPS_TASK
wps_post(SIG_WPS_TIMER_EAPOL_START, 0);
return;
#else
wifi_station_wps_eapol_start_handle_internal();
#endif
}
static int save_credentials_cb(void *ctx, const struct wps_credential *cred)
{
struct wps_credential *creds;
if (!gWpsSm || !cred || gWpsSm->ap_cred_cnt >= MAX_CRED_COUNT) {
return ESP_FAIL;
}
creds = &gWpsSm->creds[gWpsSm->ap_cred_cnt];
memcpy(creds, cred, sizeof(*creds));
gWpsSm->ap_cred_cnt++;
wpa_hexdump_ascii(MSG_DEBUG, "ssid ", cred->ssid, cred->ssid_len);
wpa_hexdump_ascii(MSG_DEBUG, "key ", cred->key, cred->key_len);
return ESP_OK;
}
int wps_init_cfg_pin(struct wps_config *cfg)
{
if (wps_get_type() != WPS_TYPE_PIN) {
cfg->pbc = 1;
return 0;
}
cfg->pbc = 0;
if ((os_strncmp((char *)cfg->pin, "00000000", 8) == 0) || !wps_pin_str_valid((char *)cfg->pin)) {
unsigned int spin = 0;
cfg->dev_pw_id = DEV_PW_DEFAULT;
cfg->pin_len = 8;
if (wps_generate_pin(&spin) < 0) {
return -1;
}
wpa_printf(MSG_INFO, "Provided PIN %s is not valid, generated a new PIN %08d", (char *)cfg->pin, spin);
os_snprintf((char *)cfg->pin, 9, "%08d", spin);
}
return 0;
}
struct wps_sm_funcs* wps_get_wps_sm_cb(void)
{
return s_wps_sm_cb;
}
static int wifi_station_wps_init(const esp_wps_config_t *config)
{
struct wps_funcs *wps_cb;
struct wps_sm *sm = NULL;
struct wps_config cfg = {0};
if (gWpsSm) {
goto _out;
}
wpa_printf(MSG_DEBUG, "wifi sta wps init");
gWpsSm = os_zalloc(sizeof(struct wps_sm)); /* alloc Wps_sm */
if (!gWpsSm) {
goto _out;
}
sm = gWpsSm;
esp_wifi_get_macaddr_internal(WIFI_IF_STA, sm->ownaddr);
os_memcpy(gWpaSm.own_addr, sm->ownaddr, ETH_ALEN);
sm->identity_len = WSC_ID_ENROLLEE_LEN;
os_memcpy(sm->identity, WSC_ID_ENROLLEE, sm->identity_len);
sm->wps_ctx = os_zalloc(sizeof(struct wps_context)); /* alloc wps_ctx */
if (!sm->wps_ctx) {
goto _err;
}
if (wps_dev_init() != 0) {
goto _err;
}
cfg.wps = sm->wps_ctx;
os_memcpy((void *)cfg.pin, config->pin, 8);
if (wps_init_cfg_pin(&cfg) < 0) {
goto _err;
}
os_memcpy(cfg.wps->uuid, sm->uuid, WPS_UUID_LEN);
cfg.wps->config_methods = sm->wps_ctx->dev.config_methods;
if ((sm->wps = wps_init(&cfg)) == NULL) { /* alloc wps_data */
goto _err;
}
/* Report PIN */
if (wps_get_type() == WPS_TYPE_PIN) {
wifi_event_sta_wps_er_pin_t evt;
os_memcpy(evt.pin_code, sm->wps->dev_password, 8);
esp_event_post(WIFI_EVENT, WIFI_EVENT_STA_WPS_ER_PIN, &evt, sizeof(evt), OS_BLOCK);
}
sm->wps->wps->cred_cb = save_credentials_cb;
/**************80211 reference***************/
if (esp_wifi_get_appie_internal(WIFI_APPIE_WPS_PR) == NULL) { /* alloc probe req wps ie */
wps_build_ic_appie_wps_pr();
}
if (esp_wifi_get_appie_internal(WIFI_APPIE_WPS_AR) == NULL) { /* alloc assoc req wps ie */
wps_build_ic_appie_wps_ar();
}
eloop_cancel_timeout(wifi_station_wps_timeout, NULL, NULL);
eloop_cancel_timeout(wifi_station_wps_msg_timeout, NULL, NULL);
eloop_cancel_timeout(wifi_station_wps_success, NULL, NULL);
eloop_cancel_timeout(wifi_wps_scan, NULL, NULL);
eloop_cancel_timeout(wifi_station_wps_eapol_start_handle, NULL, NULL);
wps_cb = os_malloc(sizeof(struct wps_funcs));
if (wps_cb == NULL) {
goto _err;
}
wps_cb->wps_parse_scan_result = wps_parse_scan_result;
wps_cb->wifi_station_wps_start = wifi_station_wps_start;
wps_cb->wps_sm_rx_eapol = wps_sm_rx_eapol;
wps_cb->wps_start_pending = wps_start_pending;
esp_wifi_set_wps_cb_internal(wps_cb);
s_wps_sm_cb = os_malloc(sizeof(struct wps_sm_funcs));
if (s_wps_sm_cb == NULL) {
goto _err;
}
s_wps_sm_cb->wps_sm_notify_deauth = wps_sm_notify_deauth;
return ESP_OK;
_err:
esp_wifi_unset_appie_internal(WIFI_APPIE_WPS_PR);
esp_wifi_unset_appie_internal(WIFI_APPIE_WPS_AR);
if (sm->dev) {
wps_dev_deinit(sm->dev);
sm->dev = NULL;
}
if (sm->wps_ctx) {
if (sm->wps_ctx->dh_privkey) {
wpabuf_free(sm->wps_ctx->dh_privkey);
}
os_free(sm->wps_ctx);
sm->wps_ctx = NULL;
}
if (sm->wps) {
wps_deinit(sm->wps);
sm->wps = NULL;
}
os_free(gWpsSm);
gWpsSm = NULL;
return ESP_FAIL;
_out:
return ESP_FAIL;
}
int wps_delete_timer(void)
{
struct wps_sm *sm = gWpsSm;
if (!sm) {
return ESP_OK;
}
eloop_cancel_timeout(wifi_station_wps_success, NULL, NULL);
eloop_cancel_timeout(wifi_station_wps_timeout, NULL, NULL);
eloop_cancel_timeout(wifi_station_wps_msg_timeout, NULL, NULL);
eloop_cancel_timeout(wifi_wps_scan, NULL, NULL);
eloop_cancel_timeout(wifi_station_wps_eapol_start_handle, NULL, NULL);
esp_wifi_disarm_sta_connection_timer_internal();
return ESP_OK;
}
int
wifi_station_wps_deinit(void)
{
struct wps_sm *sm = gWpsSm;
if (gWpsSm == NULL) {
return ESP_FAIL;
}
esp_wifi_unset_appie_internal(WIFI_APPIE_WPS_PR);
esp_wifi_unset_appie_internal(WIFI_APPIE_WPS_AR);
esp_wifi_set_wps_cb_internal(NULL);
if (sm->dev) {
wps_dev_deinit(sm->dev);
sm->dev = NULL;
}
if (sm->wps_ctx) {
if (sm->wps_ctx->dh_privkey) {
wpabuf_free(sm->wps_ctx->dh_privkey);
}
os_free(sm->wps_ctx);
sm->wps_ctx = NULL;
}
if (sm->wps) {
wps_deinit(sm->wps);
sm->wps = NULL;
}
if (s_wps_sm_cb) {
os_free(s_wps_sm_cb);
s_wps_sm_cb = NULL;
}
os_free(gWpsSm);
gWpsSm = NULL;
return ESP_OK;
}
struct wps_sm *
wps_sm_get(void)
{
return gWpsSm;
}
void
wifi_wps_scan_done(void *arg, ETS_STATUS status)
{
struct wps_sm *sm = gWpsSm;
wifi_config_t wifi_config = {0};
wpa_printf(MSG_INFO, "WPS: scan done");
if (wps_get_type() == WPS_TYPE_DISABLE) {
return;
}
if (!sm) {
return;
}
if (sm->discover_ssid_cnt == 1) {
wps_set_status(WPS_STATUS_PENDING);
} else if (sm->discover_ssid_cnt == 0) {
wps_set_status(WPS_STATUS_SCANNING);
} else {
if (sm->wps_pbc_overlap) {
sm->wps_pbc_overlap = false;
wpa_printf(MSG_INFO, "PBC session overlap!");
wps_set_status(WPS_STATUS_DISABLE);
esp_event_post(WIFI_EVENT, WIFI_EVENT_STA_WPS_ER_PBC_OVERLAP, 0, 0, OS_BLOCK);
} else {
wps_set_status(WPS_STATUS_PENDING);
}
}
wpa_printf(MSG_DEBUG, "wps scan_done discover_ssid_cnt = %d", sm->discover_ssid_cnt);
sm->discover_ssid_cnt = 0;
if (wps_get_status() == WPS_STATUS_PENDING) {
esp_wifi_disconnect();
os_memcpy(wifi_config.sta.bssid, sm->bssid, ETH_ALEN);
os_memcpy(wifi_config.sta.ssid, (char *)sm->creds[0].ssid, sm->creds[0].ssid_len);
wifi_config.sta.bssid_set = 1;
wifi_config.sta.channel = sm->channel;
wpa_printf(MSG_INFO, "WPS: connecting to %s, bssid=" MACSTR,
(char *)sm->creds[0].ssid, MAC2STR(wifi_config.sta.bssid));
esp_wifi_set_config(0, &wifi_config);
wpa_printf(MSG_DEBUG, "WPS: neg start");
wifi_config.sta.failure_retry_cnt = 2;
esp_wifi_connect();
sm->state = WAIT_START;
eloop_cancel_timeout(wifi_station_wps_msg_timeout, NULL, NULL);
eloop_register_timeout(2, 0, wifi_station_wps_msg_timeout, NULL, NULL);
} else if (wps_get_status() == WPS_STATUS_SCANNING) {
if (wps_get_type() == WPS_TYPE_PIN && sm->scan_cnt > WPS_IGNORE_SEL_REG_MAX_CNT) {
wpa_printf(MSG_INFO, "WPS: ignore selected registrar after %d scans", sm->scan_cnt);
sm->ignore_sel_reg = true;
}
eloop_cancel_timeout(wifi_wps_scan, NULL, NULL);
eloop_register_timeout(2, 0, wifi_wps_scan, NULL, NULL);
} else {
return;
}
}
void
wifi_wps_scan_internal(void)
{
struct wps_sm *sm = gWpsSm;
sm->scan_cnt++;
wpa_printf(MSG_DEBUG, "wifi_wps_scan : %d", sm->scan_cnt);
typedef void (* scan_done_cb_t)(void *arg, ETS_STATUS status);
extern int esp_wifi_promiscuous_scan_start(wifi_scan_config_t *config, scan_done_cb_t cb);
esp_wifi_promiscuous_scan_start(NULL, wifi_wps_scan_done);
}
void wifi_wps_scan(void *data, void *user_ctx)
{
#ifdef USE_WPS_TASK
wps_post(SIG_WPS_TIMER_SCAN, 0);
return;
#else
wifi_wps_scan_internal();
#endif
}
static int wps_rf_band_cb(void *ctx)
{
return WPS_RF_24GHZ;
}
int wifi_station_wps_start(void)
{
struct wps_sm *sm = wps_sm_get();
if (!sm) {
wpa_printf(MSG_ERROR, "WPS: wps is not initialized");
return ESP_FAIL;
}
eloop_register_timeout(120, 0, wifi_station_wps_timeout, NULL, NULL);
switch (wps_get_status()) {
case WPS_STATUS_DISABLE:
sm->is_wps_scan = true;
wps_build_public_key(sm->wps, NULL);
if (sm->wps->wps->dh_privkey) {
wpabuf_free(sm->wps->wps->dh_privkey);
}
sm->wps->wps->dh_privkey = sm->wps->dh_privkey;
sm->wps->wps->dh_ctx = sm->wps->dh_ctx;
sm->wps->wps->dh_pubkey = sm->wps->dh_pubkey_e;
sm->wps->wps->rf_band_cb = wps_rf_band_cb;
sm->wps->dh_privkey = NULL;
wifi_wps_scan(NULL, NULL);
break;
case WPS_STATUS_SCANNING:
sm->scan_cnt = 0;
eloop_cancel_timeout(wifi_station_wps_timeout, NULL, NULL);
eloop_register_timeout(120, 0, wifi_station_wps_timeout, NULL, NULL);
break;
default:
break;
}
sm->discard_ap_cnt = 0;
os_memset(&sm->dis_ap_list, 0, WPS_MAX_DIS_AP_NUM * sizeof(struct discard_ap_list_t));
esp_wifi_set_wps_start_flag_internal(true);
return ESP_OK;
}
int wps_task_deinit(void)
{
wpa_printf(MSG_DEBUG, "wps task deinit");
if (s_wps_api_sem) {
os_semphr_delete(s_wps_api_sem);
s_wps_api_sem = NULL;
wpa_printf(MSG_DEBUG, "wps task deinit: free api sem");
}
if (s_wps_task_create_sem) {
os_semphr_delete(s_wps_task_create_sem);
s_wps_task_create_sem = NULL;
wpa_printf(MSG_DEBUG, "wps task deinit: free task create sem");
}
if (s_wps_queue) {
os_queue_delete(s_wps_queue);
s_wps_queue = NULL;
wpa_printf(MSG_DEBUG, "wps task deinit: free queue");
}
if (STAILQ_FIRST(&s_wps_rxq) != NULL){
wps_rxq_deinit();
}
if (s_wps_data_lock) {
os_mutex_delete(s_wps_data_lock);
s_wps_data_lock = NULL;
}
return ESP_OK;
}
int wps_task_init(void)
{
int ret = 0;
/* Call wps_task_deinit() first in case esp_wifi_wps_disable() fails
*/
wps_task_deinit();
if (!s_wps_data_lock) {
s_wps_data_lock = os_recursive_mutex_create();
if (!s_wps_data_lock) {
wpa_printf(MSG_ERROR, "wps task init: failed to alloc data lock");
goto _wps_no_mem;
}
}
s_wps_api_sem = os_semphr_create(1, 0);
if (!s_wps_api_sem) {
wpa_printf(MSG_ERROR, "wps task init: failed to create api sem");
goto _wps_no_mem;
}
s_wps_task_create_sem = os_semphr_create(1, 0);
if (!s_wps_task_create_sem) {
wpa_printf(MSG_ERROR, "wps task init: failed to create task sem");
goto _wps_no_mem;
}
os_bzero(s_wps_sig_cnt, SIG_WPS_NUM);
s_wps_queue = os_queue_create(SIG_WPS_NUM, sizeof(ETSEvent));
if (!s_wps_queue) {
wpa_printf(MSG_ERROR, "wps task init: failed to alloc queue");
goto _wps_no_mem;
}
wps_rxq_init();
ret = os_task_create(wps_task, "wpsT", WPS_TASK_STACK_SIZE, NULL, 2, &s_wps_task_hdl);
if (TRUE != ret) {
wpa_printf(MSG_ERROR, "wps enable: failed to create task");
goto _wps_no_mem;
}
os_semphr_take(s_wps_task_create_sem, OS_BLOCK);
os_semphr_delete(s_wps_task_create_sem);
s_wps_task_create_sem = NULL;
wpa_printf(MSG_DEBUG, "wifi wps enable: task prio:%d, stack:%d", 2, WPS_TASK_STACK_SIZE);
return ESP_OK;
_wps_no_mem:
wps_task_deinit();
return ESP_ERR_NO_MEM;
}
int wps_post_block(uint32_t sig, void *arg)
{
wps_ioctl_param_t param;
param.ret = ESP_FAIL;
param.arg = arg;
if (ESP_OK != wps_post(sig, (uint32_t)¶m)) {
return ESP_FAIL;
}
if (TRUE == os_semphr_take(s_wps_api_sem, OS_BLOCK)) {
return param.ret;
} else {
return ESP_FAIL;
}
}
int wps_check_wifi_mode(void)
{
wifi_mode_t mode;
int ret;
ret = esp_wifi_get_mode(&mode);
if (ESP_OK != ret) {
wpa_printf(MSG_ERROR, "wps check wifi mode: failed to get wifi mode ret=%d", ret);
return ESP_FAIL;
}
if (
#ifdef CONFIG_ESP_WIFI_SOFTAP_SUPPORT
mode == WIFI_MODE_AP ||
#endif
mode == WIFI_MODE_NULL) {
wpa_printf(MSG_ERROR, "wps check wifi mode: wrong wifi mode=%d ", mode);
return ESP_ERR_WIFI_MODE;
}
return ESP_OK;
}
int esp_wifi_wps_enable(const esp_wps_config_t *config)
{
int ret = ESP_OK;
struct wps_sm *sm = gWpsSm;
if (esp_wifi_get_user_init_flag_internal() == 0) {
wpa_printf(MSG_ERROR, "wps enable: wifi not started cannot disable wpsreg");
return ESP_ERR_WIFI_STATE;
}
if (ESP_OK != wps_check_wifi_mode()) {
return ESP_ERR_WIFI_MODE;
}
if (is_dpp_enabled()) {
wpa_printf(MSG_ERROR, "wps enabled failed since DPP is initialized");
return ESP_FAIL;
}
API_MUTEX_TAKE();
if (s_wps_enabled) {
if (sm && os_memcmp(sm->identity, WSC_ID_REGISTRAR, sm->identity_len) == 0) {
wpa_printf(MSG_ERROR, "wps enable: wpsreg already enabled cannot enable wps enrollee");
ret = ESP_ERR_WIFI_MODE;
} else {
wpa_printf(MSG_DEBUG, "wps enable: already enabled");
}
API_MUTEX_GIVE();
return ret;
}
#ifdef USE_WPS_TASK
ret = wps_task_init();
if (ESP_OK != ret) {
API_MUTEX_GIVE();
return ret;
}
ret = wps_post_block(SIG_WPS_ENABLE, (esp_wps_config_t *)config);
if (ESP_OK != ret) {
wps_task_deinit();
API_MUTEX_GIVE();
return ret;
}
s_wps_enabled = true;
wpa_printf(MSG_DEBUG, "wifi wps task: prio:%d, stack:%d", 2, WPS_TASK_STACK_SIZE);
API_MUTEX_GIVE();
return ret;
#else
ret = wifi_wps_enable_internal(config);
API_MUTEX_GIVE();
return ret;
#endif
}
bool is_wps_enabled(void)
{
return s_wps_enabled;
}
int wifi_wps_enable_internal(const esp_wps_config_t *config)
{
int ret = 0;
struct wpa_sm *wpa_sm = &gWpaSm;
wpa_printf(MSG_DEBUG, "ESP WPS crypto initialize!");
if (config->wps_type == WPS_TYPE_DISABLE) {
wpa_printf(MSG_ERROR, "wps enable: invalid wps type");
return ESP_ERR_WIFI_WPS_TYPE;
}
wpa_printf(MSG_DEBUG, "Set factory information.");
ret = wps_set_factory_info(config);
if (ret != 0) {
return ret;
}
wpa_printf(MSG_INFO, "wifi_wps_enable");
wps_set_type(config->wps_type);
wps_set_status(WPS_STATUS_DISABLE);
ret = wifi_station_wps_init(config);
if (ret != 0) {
wps_set_type(WPS_TYPE_DISABLE);
wps_set_status(WPS_STATUS_DISABLE);
return ESP_FAIL;
}
wpa_sm->wpa_sm_wps_disable = esp_wifi_wps_disable;
return ESP_OK;
}
int wifi_wps_disable_internal(void)
{
wps_set_status(WPS_STATUS_DISABLE);
/* Call wps_delete_timer to delete all WPS timer, no timer will call wps_post()
* to post message to wps_task once this function returns.
*/
wps_delete_timer();
wifi_station_wps_deinit();
return ESP_OK;
}
int esp_wifi_wps_disable(void)
{
int ret = 0;
int wps_status;
struct wps_sm *wps_sm = gWpsSm;
struct wpa_sm *wpa_sm = &gWpaSm;
if (wps_sm && os_memcmp(wps_sm->identity, WSC_ID_REGISTRAR, wps_sm->identity_len) == 0) {
return ESP_ERR_WIFI_MODE;
}
API_MUTEX_TAKE();
if (!s_wps_enabled) {
wpa_printf(MSG_DEBUG, "wps disable: already disabled");
API_MUTEX_GIVE();
return ESP_OK;
}
wps_status = wps_get_status();
wpa_printf(MSG_INFO, "wifi_wps_disable");
wps_set_type(WPS_TYPE_DISABLE); /* Notify WiFi task */
#ifdef USE_WPS_TASK
ret = wps_post_block(SIG_WPS_DISABLE, 0);
#else
ret = wifi_wps_disable_internal();
#endif
if (ESP_OK != ret) {
wpa_printf(MSG_ERROR, "wps disable: failed to disable wps, ret=%d", ret);
}
/* Only disconnect in case of WPS pending/done */
if ((wps_status == WPS_STATUS_PENDING) || (wps_status == WPS_STATUS_SUCCESS)) {
esp_wifi_disconnect();
}
esp_wifi_set_wps_start_flag_internal(false);
wps_task_deinit();
s_wps_enabled = false;
API_MUTEX_GIVE();
wpa_sm->wpa_sm_wps_disable = NULL;
return ESP_OK;
}
int esp_wifi_wps_start(int timeout_ms)
{
if (ESP_OK != wps_check_wifi_mode()) {
return ESP_ERR_WIFI_MODE;
}
API_MUTEX_TAKE();
if (!s_wps_enabled) {
wpa_printf(MSG_ERROR, "wps start: wps not enabled");
API_MUTEX_GIVE();
return ESP_ERR_WIFI_WPS_SM;
}
if (wps_get_type() == WPS_TYPE_DISABLE || (wps_get_status() != WPS_STATUS_DISABLE && wps_get_status() != WPS_STATUS_SCANNING)) {
API_MUTEX_GIVE();
return ESP_ERR_WIFI_WPS_TYPE;
}
if (esp_wifi_get_user_init_flag_internal() == 0) {
API_MUTEX_GIVE();
return ESP_ERR_WIFI_STATE;
}
wpa_printf(MSG_DEBUG, "wps scan");
#ifdef USE_WPS_TASK
wps_post_block(SIG_WPS_START, 0);
#else
ic_pp_post(SIG_PP_WPS, 0);
#endif
API_MUTEX_GIVE();
return ESP_OK;
}
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